Planning a Deck . The key element in building a deck is the plan, which can serve as a guide throughout construction if it’s been properly sized and drawn for existing codes and lumber tolerance..Learn the critical de.s for building a long lasting and leak proof rooftop deck over livinge..I’m going to start with Mage because this is the clmost people start on. Mage has a lot of great clcards, and you can actually do a bit of ladder climbing with a deck full of basic Mage cards..A Basic only Rogue deck based around efficient removal and Tempo.